Active Acoustic Piezoelectric Buzzer Electronic Bells Ball Pick-Ups & Retrievers 1 Piece Watch Case Back

1 Piece Watch Case Back Opener

can be autoclaved at 121 ℃

Genuine teak wood construction by handcraft

Specification: Material: Foam and Artificial Feather Size(L x W x H): approx

Screwdriver Bit x 10

Active Acoustic Piezoelectric Buzzer Electronic Bells Ball Pick-Ups & Retrievers 1 Piece Watch Case BackITEM NAME: Active Acoustic Piezoelectric Buzzer Electronic Bells Description: The piezoelectric buzzer is mainly composed of a multivibrator, a piezoelectric buzzer, an impedance matching device, a resonance box, an outer casing and the like. Some piezoelectric buzzer housings are also equipped with light emitting diodes. A multivibrator is composed of a transistor or an integrated circuit. When the power is turned on (1. 5~15V DC working voltage),